Att-est



(No Model.) 2 Sheets-Sheet 1. H. BREER. DBSIGGATING APPARATUS.

Patented Sept. 22, 1885.

N. PETERS, Phuwumogmphnr. washington. D. C.

(No Model.) 2 Sheets-Sheet 2. H. BEBER.

DBSIGGATING APPARATUS.

No. 326,843. Patented Sept. 22. 1885.

E. {TIE-- Nrrn raras HENRY BREER, OF DE VIIT, NEW YORK, ASSIGNOR TO CAROLINE H. BREER, OF SAME PLACE.

DESICCATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 326,843, dated September 22, 1885.

(No model.)

To all whom it may concern:

Be it known that I, HENRY Banni-z, of De Witt, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Desiccating Apparatus, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. This invention relates to the class of desiccating apparatus in which a horizontal desiccating-cylinder is arranged to rotate in a combustion chamber which completely incloses said cylinder, and is provided with a feeddoor for introducing the substance to be treated in the cylinder, and a discharge-door for removing the substance after it has been subjected to the desiccating process.

The invention consists in the combination, with the aforesaid desiccatingcylinder, of iiues extending through and around the said cylinder, so as to materially increase the heating-surfaces thereof, and in various other devices connected with the apparatus for the purpose of increasing its efficiency, all as hereinafter more fully explained, and speciiically set forth in the claims.

In the annexed drawings, Figure 1 is a vertical longitudinal section of my improved desiccating apparatus. Fig. 2 is a Vertical longitudinal section of the combustion chamber and the smoke-jacket surrounding the desiccatingcylinder. Fig. 8 is a vertical transverse section on line x x, Fig. 1. Fig. 4 is an end view of the apparatus, and Figs. 5 and 6 are detail views of the means of obtaining access'to the flues or pipes inside of the desiccating-cylinder for cleaning said pipes.

Similar letters of reference indicate corresponding parts.

B represents the horizontal elongated combustion-chamber, communicating at one end with the furnace A, and provided at the opposite end with a chimney, E, which latter is provided with a valve, t.

O is the desicoating-cylinder,arranged horizontally and lengthwise in the combustionchamber, and journaled in suitable bearings secured to the end walls of the combustionchamber.

A pulley or gear-wheel, H, is secured to the axes of the cylinder for the purpose of transmitting rotary motion to the cylinder from a suitable motive power.

A chute or feed-door, I, at one end of the combustion-chamber admits' the substance to be treated to the interior of the desiccatingcylinder O, and a discharge-door, K, is arranged at the opposite end of the combustionchamber for removing the desiccated substance from the cylinder.

Between the cylinder C and inclosing combustion -chamber B is interposed an' extra smoke-jacket, D, surrounding the cylinder C, and iirmly secured thereto, so as to rotate therewith. Said smokejacket communicates with the combustion-chamber at the end adjacent to the furnace A, and thus also communicates nearly direct with the latter. The opposite end of the smoke-jacket communi- Cates with the interior of the desiccating-cylinder C, as indicated by an arrow in Fig. 1 of the drawings. Aspaee over the upper half of the smoke-jacket allows the products of combustion to pass from the furnace direct over the exterior of the smoke-jacket to the chimney E,when the valve o of the latter is open. At the end of the combustion-chamber which has the chimney E a iianged ring, b, is extended around the exterior of the upper half of the smoke-jacket, and between the lower halves ofthe desiccating-cylinder and smokejacket, so that the upper part of the smokejacket is allowed to communicate with the interior of the desiccating-cylinder, while the communication between said parts is prevented at the lower portion thereof. I have prior to my present invention employed a similar jacket around the desiccating-cylinder, as shown in Patent No. 303,914, granted to me August 19, 1884; but in said prior device the interior of the jacket had no communication with the furnace, and was designed only for containing steam; hence it needed a different arrangement in relation to the furnace.

In order to effectually distribute the heat around the desiccating-cylinder O, I form a spiral or tortuous repassage through the smoke-jacket D by means of a spiral partition, c, therein.

G G designate pipes extended diametrically across the desicoating-cylinder, and commu- IOO and smoke-jacket by branch pipes F F', ex-

tending through the sides of the desiccatingcylinder, as illustrated in Fig. 1 of the drawings. The ends of the longitudinal pipes F F are provided with removable covers to afford access to the interior of said pipes for cleaning the same, the covers being accessible through the doors K K in the end walls or plates of the combustion-chamber.

In order to admit of cleaning the diametrical pipes G G and the branch pipes F F', I provide the shell of the smoke-jacket with portsd d, directly in front of 'the ends of said pipes, and place over said ports a removable cover, e, as illustrated in Fig. 6 of the drawings; and the combustion-chamber I provide with a set of doors, f, in such positions as to permit of bringing the ports d d ofthe smokejacket in range with said doors -by turning the desiccating cylinder with the smokejacket.

c c denote vibratory beaters in the form of chains suspended by one end from the inner side of the combustion-chamber. During the revolution of the desiccating-cylinder the suspended chains c c are caused to'strike and drag across the longitudinal pipes F F, and thereby jar the soot loose from the interior thereof and scrape fromthe exterior of the same the substance which may tend to adhere to said pipes. against the side of the desiccating-cylinder and roll or drag over the same, and thereby scour the inner surface of the desiccating-cylinder. Furthermore, during the aforesaid operation the chains c c serve to agitate and macerate the substance under treatment.

It will be observed that by the combination with the desiccating-cylinder of the pipes F and G the substance under treatment is subjected to greatly-augmented heating-surfaces, and is also thoroughly stirred during the revolution of the desiccating-cylinder.

The products of combustion can be diverted from the interior of the combustion-chamber and smoke-jacket whenever desired by opening the valve or damper c in the chimney E, when the products of combustion will pass from the furnace A directly through the upper portion of the combustion-chamber to the aforesaid chimney. By closing the valve c the products of combustion are compelled to pass from the furnace into the smoke-jacket D, from whence they are conveyed to the interior of the desiccating-cylinder at the farthest end-thereof. A fan-blower, M, having its suction-pipe N communicating with the opposite end of the desiccating-cylinder, draws the products of combustion through and out of said cylinder.

In passing through the smoke-jacket D the Said chains subsequently fall products of combustion are compelled to circulate completely around the exterior of the rotary desiccating-cylinder by the spiral partition a, and t-he distribution of the products of combustion is further promoted by the pipes F, F, and G passing through the desiccating-cylinder in the manner hereinbefore described.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In combination with the combustionchamber and the horizontal rotary desiccating-cylinder, pipes arranged longitudinally in said cylinder, and branch pipes extending from the longitudinal pipes through the side of the cylinder, as and for the purpose` set forth. 4

2. In combination with the combustionchamber and the horizontal rotary desiccating-cylinder, pipes arranged longitudinally in said cylinder, branch pipes extending from the longitudinal pipes through the side of the cylinder, and a smoke-jacket surrounding-the cylinder, substantially as set forth and shown. 3. In combination with the furnace, desiccating-cylinder, and the combustion-chamber inclosing said cylinder, two passages for products of combustion between the desiccatingcylinder and combustion-chamber, and extending lengthwise the same, one of said passages surrounding the desiccating-cylinder and communicating with the interior thereof at one end, and the other passage being arranged over the exterior of the rst passage and communicating with the chimney, substantially as set forth.

4. 'Ihe combination, with the horizontal rotary desiccating-cylinder, of a smoke-jacket communicating at one end with the furnace, and at the opposite end with the interior of the desiccating-cylinder, and a spiral partition in the smoke-jacket, substantially as described and shown.

5. The combination, with a horizontal rotary desiccating-cylinder, of a smokejacket surrounding said cylinder, pipes arranged longitudinally in said cylinder, and branch pipes extending from the longitudinal pipes to the combustion-chamber and smoke-jacket, substantially as described and shown.

6. The combination, with the horizontal rotary desiccating-cylinder, of a smoke-jacket surrounding said cylinder, a tortuous smokepassage in said jacket, pipes arranged longitudinally in the desiccating cylinder, and branch pipes extending from the longitudinal pipes to the combustion-chamber and smokejacket, substantially as described and shown.

7. The combination, with the horizontal rotary desiccating-cylinder, of a smoke-jacket communicating at one end with the furnace and at the opposite end with lthe interior of the desiccating-cylinder, spiral partitions in the smoke-jacket, pipes arranged longitudinally in the cylinder, and branch pipes extending from the longitudinal pipes to the com- IOO IIO

IIS

bustion-chamber and smoke-jacket, all combined substantially as described and shown.

8. The combination, with a rotary desiccating-cylinder, of a spiral smoke-passage formed on the exterior of the said cylinder, and arranged to rotate therewith.

9. The combination, with a rotary desiccating-cylinder, of a smoke-jacket surrounding said cylinder and arranged to rotate therewith, and pipes extended diametrically across the cylinder and communicating at opposite ends with the smoke-jacket, substantially as described and shown.

10. The combination, with a horizontallyelongated combustion-chamber, of a furnace connected with one end thereof, a chimney at the opposite end of the combustionchamber, a horizontal rotary desiccating-cylinder ar ranged lengthwise in the combustion chamber, a smoke-jacket surrounding the desiccating-cylinder and arranged to rotate with the same, and communicating at one end with the combustion-chamber and furnace and at the opposite end with the interior of the desiccatingcylinder, and a damper in the aforesaid chimney, whereby the products of conibustion can be made to pass either from the furnace over the exterior of the smoke-jacket to the chimney, or through the smoke-jacket and desiccating-cylinder, substantially as described and shown.

l1. In combination to the rotary desiccating-cylinder and pipes extending transversely through it, a smoke-jacket surrounding said cylinder, ports in said jacket for cleaning the aforesaid pipes, and removable covers over said ports, substantially as described and shown.

In testimony whereof I have hereunto signed my name and affixed my seal, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 28th day of January, 1885.

HENRY BREER. [n s] Vitnesses:

FREDERICK H. GIBBs, WILLIAM C. RAYMOND. 

